package com.zhao.controller;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.zhao.pojo.Dept;
import com.zhao.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 提供rustful服务---接口
 *
 */
@RestController
public class DeptController {

    @Autowired
    private DeptService deptService;

    @GetMapping("/dept/get/{id}")
    @HystrixCommand(fallbackMethod ="hystrixGet")
    public Dept get(@PathVariable("id") Long id){
        Dept dept = deptService.quertByid(id);
        //如果id为空，进行异常处理
        if(dept==null){
            throw new RuntimeException("id=>"+id+"不存在该用户，或者信息无法找到~");
        }
        return dept;
    }
    //备选方案---熔点机制
    public Dept hystrixGet(@PathVariable("id") Long id) {
        return new Dept()
                .setDeptno(id)
                .setDeptname("id=>" +id+"没有对应的信息户，NUlL--Hystrix")
                .setDb_source("no this database in MYSQL");
    }
    @GetMapping("/dept/list")
    public List<Dept> list(){
        return  deptService.queryAll();
    }

    @GetMapping("/dept/add")
    public boolean add(@RequestBody Dept dept){
        return  deptService.addDept(dept);
    }


}

